I tried the two Panasonic DVD players I have (an S27 cheapy that came free with a tv, and a 510 one-box surround thing) and they both show all various times remaining.
They do it in different ways though, and I imagine it'll be different on yours too, as it's a recent model. But still, I'm pretty sure you'll be able to do it.
As I mentioned earlier, the ones I have cycle through the timers. If you can display any timer, there's a chance that you'll be able to access time remaining in the same way. Either by pressing the same button again, using one of the directional buttons, or pressing enter or something else, to cycle through the various timers..
Why not email Panasonic directly?